MP2499MGQB-Z

MP2499M 36V, 3A Max, High-Efficiency, Synchronous, Step-Down Converter with Output Line Drop Compensation NOT RECOMMENDED FOR NEW DESIGNS. REFER TO MP2499A DESCRIPTION FEATURES The MP2499M is a synchronous, rectified, stepdown, switch-mode converter with built-in power MOSFETs. The MP2499M offers a very compact solution that achieves a maximum of 3A of continuous output current with built-in, output, line drop compensation. • • • • • The MP2499M has synchronous mode operation for high efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. • • • Full protection features include over-current protection (OCP) and thermal shutdown. • • • • The MP2499M requires a minimal number of readily available, standard, external components and is available in a space-saving QFN-13 (2.5mmx3mm) package. Wide 5V to 36V Continuous Operating Input Range 85mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs High-Efficiency Synchronous Mode Operation Default 270kHz Switching Frequency Synchronizes to a 200kHz to 2.4MHz External Clock Internal Soft Start Output Line Drop Compensation Accurate Continuous Output Current Limit with External Resistor Over-Current Protection (OCP) and Hiccup Thermal Shutdown Output Adjustable from 0.8V Available in a QFN-13 (2.5mmx3mm) Package APPLICATIONS • • • • USB Dedicated Charging Ports (DCP) Automotive Cigarette Lighter Adapters USB Chargers USB PD Applications All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION R4 20Ω VIN 12V C1 22μF BST IN MP2499M EN/SYNC EN/SYNC VCC C3 0.1μF C4 0.1μF SW + R1 82.5kΩ FB R2 15.4kΩ AGND PGND L1 11μH C2 100μF C2A 1μF VOUT 5V/2.4A ISENSE R3 40mΩ MP2499M Rev 1.0 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2018 MPS. All Rights Reserved. 1 MP2499M – 36V, 3A MAX, SYNCHRONOUS BUCK CONVERTER NOT RECOMMENDED FOR NEW DESIGNS. REFER TO MP2499A ORDERING INFORMATION Part Number* Package Top Marking MP2499MGQB QFN-13 (2.5mmx3mm) See Below * For Tape & Reel, add suffix –Z (e.g. MP2499MGQB–Z) TOP MARKING ART: Product code of MP2499MGQB Y: Year code WW: Week code LLL: Lot number PACKAGE REFERENCE TOP VIEW PGND PGND PGND BST 13 IN IN 12 11 10 9 SW 8 AGND 7 VCC 1 2 3 4 5 6 NC ISENSE EN/ FB SYNC QFN-13 (2.5mmx3mm) MP2499M Rev 1.0 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2018 MPS. All Rights Reserved. 2 MP2499M – 36V, 3A MAX, SYNCHRONOUS BUCK CONVERTER NOT RECOMMENDED FOR NEW DESIGNS. REFER TO MP2499A ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance (4) VIN .................................................. -0.3V to 40V VSW ................................... -0.3V (-5V for